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Finding the Third Proportional to 2,008 and 5,230

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Solution

The third proportional to 2,008 and 5,230 is: 13,621.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,008 : 5,230 = 5,230 : x
  2. Step 2: Convert to fraction form
    2,008/5,230 = 5,230/x
  3. Step 3: Cross multiply
    2,008x = 5,230 × 5,230
  4. Step 4: Simplify right side
    2,008x = 27,352,900
  5. Step 5: Solve for x
    x = 27,352,900/2,008
  6. Step 6: Final answer
    x = 13,621.96

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Why These Related Problems?

These problems maintain the same ratio (2.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.